Message ID | 1601668844-5798-3-git-send-email-mjrosato@linux.ibm.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | Pass zPCI hardware information via VFIO | expand |
On Fri, 2 Oct 2020 16:00:41 -0400 Matthew Rosato <mjrosato@linux.ibm.com> wrote: > We'll need to keep track of whether or not the byte string in util_str is > valid and thus needs to be passed to a vfio-pci passthrough device. > > Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com> > Acked-by: Niklas Schnelle <schnelle@linux.ibm.com> > Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> > --- > arch/s390/include/asm/pci.h | 3 ++- > arch/s390/pci/pci_clp.c | 1 + > 2 files changed, 3 insertions(+), 1 deletion(-) FWIW: Acked-by: Cornelia Huck <cohuck@redhat.com>
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 882e233..fa1fed4 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -132,7 +132,8 @@ struct zpci_dev { u8 rid_available : 1; u8 has_hp_slot : 1; u8 is_physfn : 1; - u8 reserved : 5; + u8 util_str_avail : 1; + u8 reserved : 4; unsigned int devfn; /* DEVFN part of the RID*/ struct mutex lock; diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index 48bf316..322689b 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -168,6 +168,7 @@ static int clp_store_query_pci_fn(struct zpci_dev *zdev, if (response->util_str_avail) { memcpy(zdev->util_str, response->util_str, sizeof(zdev->util_str)); + zdev->util_str_avail = 1; } zdev->mio_capable = response->mio_addr_avail; for (i = 0; i < PCI_STD_NUM_BARS; i++) {